ul,li{
    margin: 0;
    padding: 0;
}
.box{
    width: 1003px;
    height: 296px;
    border: 1px solid white;
    margin: 0 auto;
}
.box img{
    width: 1003px;
    height: 296px;
    border: 0px; 
}
nav{
    position: relative;
    width: 1002px;
    height: 40px;
    /* overflow: hidden; */
    margin: 0 auto;
    background-color: rgb(142, 200, 226);

}
nav ul li{
    display: block;
    float: left;
    width: 111.3px;
    height: 40px;
    line-height: 40px;
    list-style: none;
    text-decoration: none;
    text-align: center;
    background-color: rgb(142, 200, 226) ;
}
nav a{
    display: block;
    color: white;
    width: 110.3px;
    height: 40px;
    text-decoration: none;
    border-bottom: 1px solid rgb(204, 204, 204);
}
nav a:hover{
    background-color: #666;
    color: white;
    border-bottom: 1px solid red;
}
nav .submenu{
    visibility: hidden;
    width: 110.3px;
}
nav a:hover{
    background-color: #666;
    color: white;
    border-bottom: 1px solid red;
}
nav li:hover .submenu{
    visibility: visible;
    position: relative;
    z-index: 100;
}
nav .submenu li{
    height: 40px;
    font-size: 1rem;
    line-height: 35px;
}
.box_m{
    width: 1000px;
    height: 600px;
    border: 1px solid white;
    margin: 0 auto;
}
.m1{
    width:260px;
    height: 39px;
    font-size:1.2rem;
    background-color: rgb(237, 235, 235);
    border: 1px solid white;
}
.box_m2{
    width: 260px;
    height: 213px;
    margin-left: 0;
    border: 1px solid rgb(96, 197, 217);
}
.box_m2 .top1{
    width: 255px;
    height: 28px;
    margin: 0 auto;
    margin-top: 2px;
    border: 1px solid white;
    background-color: rgb(150, 234, 251);
}
.box_m2 .top1 span{
    position: absolute;
    color: white;
    margin-top: 2px;
    margin-left: 10px;
}
.box_m2 .top1 img{
    position: absolute;
    width: 35px;
    height: 15px;
    margin-left: 217px;
    margin-top: 6px;
}
li{
    list-style-type: none;
}
.box_m2 .xinwen1 a{
    display: block;
    width: 390px;
    height: 10px;
    margin-top: -3px;
    margin-left: 20px;
    font-size: 7px;
    color: #666;
    text-decoration:none;
}
.box_m3{
    width: 260px;
    height: 213px;
    margin-left: 0;
    border: 1px solid rgb(96, 197, 217);
}
.box_m3 .top2{
    width: 255px;
    height: 28px;
    margin: 0 auto;
    margin-top: 2px;
    border: 1px solid white;
    background-color: rgb(150, 234, 251);
}
.box_m3 .top2 span{
    position: absolute;
    color: white;
    margin-top: 2px;
    margin-left: 10px;
}
.box_m3 .top2 img{
    position: absolute;
    width: 35px;
    height: 15px;
    margin-left: 217px;
    margin-top: 6px;
}
.box_m3 .jioayan1 a{
    display: block;
    width: 390px;
    height: 10px;
    margin-top: -3px;
    margin-left: 20px;
    font-size: 7px;
    color: #666;
    text-decoration:none;
}
.box_m4{
    position: absolute;
    width: 750px;
    height: 475px;
    border: 1px solid white;
    margin-left: 263px;
    margin-top: -471px;
}
.box_m4 .top3{
    position: absolute;
    width: 720px;
    height: 34px;
    border: 1px solid white;
}
.box_m4 .top3 img{
    width: 29px;
    height: 31px;
}
.box_m4 .top3 span{
    position: absolute;
    width: 70px;
    height: 24px;
    margin-top: 5px;
}
.box_m4 .top3 .u1{
    position: absolute;
    margin-top: -30px;
    margin-left: 500px;
}
.box_m4 .top3 .u1 .l1{
    width: 70px;
    position: absolute;
    margin-top: -22px;
    margin-left: 70px;
}
.box_m4 .top3 .u1 .l2{
    width: 100px;
    position: absolute;
    margin-top: -22px;
    margin-left: 125px;
}
.box_m4 .top3 .u1 li a{
     text-decoration: none;
     color: #666;
}
.box_m4 .u2{
    position: absolute;
    width: 750px;
    height: 400px;
    margin-top: 36px;
    border: 1px solid white;
}
.box_m4 .u2 li a{
    
    color: #666;
    text-decoration: none;
}
.box_m4 .u2 li a span{
    display: block;
    font-size: 0.9rem;
}
.box_m5{
   
    width:400px;
    height: 30px;
    margin-left: 450px;
    margin-top: 20px;
    color: #666;
    border: 1px solid white;
}

.box_m5 ul li a{
    text-decoration:none;
    color: #666;
}
.box_m5 ul .l3{
   width: 34px;
   height: 22px;
   margin-top: -18px;
   margin-left: 150px;
   text-align: center;
   border: 1px solid rgb(150, 234, 251);
}
.box_m5 ul .l4{
    width: 15px;
    height: 22px;
    margin-top: -24px;
    margin-left: 189px;
    text-align: center;
    border: 1px solid rgb(150, 234, 251);
 }
 .box_m5 ul .l5{
    width: 15px;
    height: 22px;
    margin-top: -24px;
    margin-left: 210px;
    text-align: center;
    border: 1px solid rgb(150, 234, 251);
 }
 .box_m5 ul .l6{
    width: 15px;
    height: 22px;
    margin-top: -24px;
    margin-left: 230px;
    text-align: center;
    border: 1px solid rgb(150, 234, 251);
 }
 .box_m5 ul .l7{
    width: 15px;
    height: 22px;
    margin-top: -24px;
    margin-left: 250px;
    text-align: center;
    border: 1px solid rgb(150, 234, 251);
 }
 .box_m5 ul .l8{
    width: 15px;
    height: 22px;
    margin-top: -24px;
    margin-left: 270px;
    text-align: center;
    border: 1px solid rgb(150, 234, 251);
 }
 .box_m5 ul .l9{
    width: 15px;
    height: 22px;
    margin-top: -24px;
    margin-left: 290px;
    text-align: center;
    border: 1px solid rgb(150, 234, 251);
 }
 .box_m5 ul .l10{
    width: 15px;
    height: 22px;
    margin-top: -24px;
    margin-left: 310px;
    text-align: center;
    border: 1px solid rgb(150, 234, 251);
 }
 .box_m5 ul .l11{
    width: 20px;
    height: 22px;
    margin-top: -24px;
    margin-left: 330px;
    text-align: center;
    border: 1px solid rgb(150, 234, 251);
 }
 .box_m5 ul .l12{
    width: 34px;
    height: 22px;
    margin-top: -24px;
    margin-left: 355px;
    text-align: center;
    border: 1px solid rgb(150, 234, 251);
 }
 .box_foot{
    position: absolute;
    width: 812px;
    height: 63px;
    border: 1px solid white;
    margin-top: -5px;
    margin-left: 150px;
}
.box_foot div{
    width: 812px;
    height: 4px;
    border: 1px solid white;
    margin-left: 180px;
    background-color: rgb(150, 234, 251);
}
.box_foot p{
    position: absolute;
    margin-top: 20px;
    margin-left: 170px;  
}